静息痛是肢体在静止状态下的疼痛，是血管性病变的中期表现，当病变发展，下肢缺血加重，不行走也发生疼痛，称为静息痛。疼痛持续存在，经休息不能缓解，夜间可更加明显。静息痛的发生，常提示病变及缺血的程度均已加重。不论是动脉或静脉病变，都可以造成静息痛，前者比后者疼痛更剧烈。
手术指征是间歇性跛行，静息痛和趾端坏疽。
The indication for surgery was disabling claudication, rest pain and gangrene.
结果注射1~2周后全部患者的临床症状均得到不同程度的改善，其中以静息痛、冷感改善较明显；
Results The clinical symptoms of all patients were improved to different degree 1 to 2 weeks after injection and rest pain and cold feeling were improved more obviously.
主要观察指标：两组治疗后下肢静息痛、麻木无力、间歇性跛行、行走距离的改善情况，以及不良反应。
MAIN OUTCOME MEASURES: the improvement in rest pain, numbness, intermittent limp and walking distance of the lower limbs after the treatment in the two groups as well as the adverse effects.
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